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Energy Unit Review
| Question | Answer |
|---|---|
| Energy stored in particles of matter for later use. | Chemical energy |
| Used to convert solar energy to electrical energy. | Solar cells |
| Energy due to the motion and position of an object. | Mechanical energy |
| Fast moving cars have more of this type of energy than a slow moving car. | Kinetic energy |
| The transfer of energy that takes places when a book is falling from a shelf. | Potential to kinetic |
| The most unwanted form of energy. | Heat energy. |
| A push or pull on an object. | Force |
| An electric current flowing through a wire wrapped around an iron core forms this. | An electromagnet |
| When animals use chemical energy in food to move. The chemical energy is transferred into this form of energy. | Mechanical kinetic energy |
| This surrounds a magnet. | Magnetic field |
| This is where the manipulated variable is ALWAYS graphed on. | X-axis |
| Unlike poles do this. | Attract |
| The flow of electrons. | Electricity |
| Involves direct contact | Conduction |
| Electrical energy can be transformed into light energy in an electric circuit if a ____ is added to it. | Light bulb |
| A huge wheel that rotate when pushed by water, wind, or steam. | Turbine |
| A flat slanted surface. | Inclined plane |
| Another name for a double pulley system. | Block and Tackle |
| Consists of two circular objects and a shaft. | Wheel and axle |
| Two types of energy | Kinetic and potential |
| Two or more simple machines | Compound/complex machine |
| The three ways heat can be transferred. | Conduction, convection, and radiation. |
| The pulley system that is the most effective. | Block and tackle( double pulley system) going up |
| A coil of wire spinning around a magnet or vice versa can form this. | An electric current |
| Energy that is flowing in an electric circuit. | Electrical energy |
| Batteries,food, and wood all contain this form of energy. | Chemical energy |
| The transfer of thermal energy. | Heat energy |
| The transfer of energy through space. | Radiation |
| The unit that force is measured in. | Newtons |
| A grooved wheel | Pulley |
| The fixed point on a lever. | Fulcrum |
| A device that reduces the amount of forc required to do work and can change the direction of that force. | Simple machine |
| A pulley that is attached to a structure. | Fixed pulley |
| Converts mechanical energy into electrical energy. | Generator |
| Like poles do this. | Repel |
| Wire is known as the ____ in an electric circuit. | Conductor |
| The transfer of energy through liquids(fluids) & gases. | Convection |
| Poor conductors are called this. | Insulators |
| Converts electrical energy into mechanical energy. | Motor |
| Door knobs, steering wheels, screwdrivers, and gears are examples of this. | Wheel and axle |
| This type of slope is the most practical for an inclined plane. | Gentle slope |
| The TYPE of energy an object has due to its motion. | Kinetic |
| Energy can't be created or destroyed, but can change from one form to another. | Law of Conservation of Energy |
| A stretched rubberband has this. | Elastic potential energy |
| As heat is added to an object, the temperature does this. | Increase/rises |
| Water that is behind a dam has this form of energy. | Mechanical potential energy |
| Energy from the sun. | Solar energy |
| An effective inclined plane will make you travel a _____ distance. | Longer |
| The object that you are trying to move is called this. | Load |
| Used to measure mass | Triple beam balance |
| The ability to cause change. | Work |
| The instrument used to measure force. | Spring scale |
| A rigid bar that moves around a fixed point. | Lever |
| The biggest mechanical advantage of a lever would be having the load close to the fulcrum and the effort ________ ________ from the fulcrum. | Far away |
| When you apply a force on an object over a distance and the object moved in response to the force. | Work |
| In an electromagnet, the magnetism will be lost if the _________ stop flowing. | Electric current |
| The unit for measure work and energy. | Joule |
| Force from the stretching or compressing of an object. | Elastic |
| This is evidence that energy has been used. | Movement |
Created by:
jhaynes10
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